Home / 12,321,465.30-18,446,768.55-11,967,171.30

Finding the Fourth Proportional to 12,321,465.30, 18,446,768.55 and 11,967,171.30

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Solution

The fourth proportional to 12,321,465.30, 18,446,768.55 and 11,967,171.30 is: 17,916,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321,465.30 : 18,446,768.55 = 11,967,171.30 : x
  2. Step 2: Convert to fraction form
    12,321,465.30/18,446,768.55 = 11,967,171.30/x
  3. Step 3: Cross multiply
    12,321,465.30x = 18,446,768.55 × 11,967,171.30
  4. Step 4: Simplify right side
    12,321,465.30x = 220,755,639,169,302.62
  5. Step 5: Solve for x
    x = 220,755,639,169,302.62/12,321,465.30
  6. Step 6: Final answer
    x = 17,916,346.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.